National Weather Service Forecast for: Vallejo CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:36 pm PST Dec 22, 2025
 
Overnight

Overnight: A 30 percent chance of rain, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 54. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Patchy
Fog
 Tuesday

Tuesday: A 50 percent chance of rain after noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 58. Southeast wind 8 to 11 mph, with gusts as high as 23 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Chance Rain
and Patchy
Fog
 Tuesday
Night
Tuesday Night: Rain, mainly before 4am. Low around 51. South southeast wind 16 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain

 Wednesday

Wednesday: Rain, mainly between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 55. South southwest wind 10 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm before 7pm, then rain between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 52. South southeast wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Showers

 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm before 10am, then rain between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 53. Breezy. Chance of precipitation is 100%.
Showers and
Breezy
 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 47. Chance of precipitation is 100%.
Showers

 Friday

Friday: Rain, mainly before 4pm. Mostly cloudy, with a high near 52.
Rain

 Friday
Night
Friday Night: A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41.
Chance Rain
Lo 54 °F Hi 58 °F Lo 51 °F Hi 55 °F Lo 52 °F Hi 53 °F Lo 47 °F Hi 52 °F Lo 41 °F

High Wind Watch
Flood Watch
 

Overnight
 
 A 30 percent chance of rain, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 54. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 A 50 percent chance of rain after noon. Patchy fog before 11am. Otherwise, cloudy, with a high near 58. Southeast wind 8 to 11 mph, with gusts as high as 23 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Rain, mainly before 4am. Low around 51. South southeast wind 16 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
 
 Rain, mainly between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 55. South southwest wind 10 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Showers and possibly a thunderstorm before 7pm, then rain between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 52. South southeast wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Christmas Day
 
 Showers and possibly a thunderstorm before 10am, then rain between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 53. Breezy. Chance of precipitation is 100%.
Thursday Night
 
 Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 47. Chance of precipitation is 100%.
Friday
 
 Rain, mainly before 4pm. Mostly cloudy, with a high near 52.
Friday Night
 
 A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41.
Saturday
 
 Mostly sunny, with a high near 50.
Saturday Night
 
 Mostly clear, with a low around 37.
Sunday
 
 Sunny, with a high near 49.
Sunday Night
 
 Mostly clear, with a low around 37.
Monday
 
 Sunny, with a high near 50.

 

Forecast from NOAA-NWS for Vallejo CA.